Category: Administration / Server

31.01.2025

why have one package management system if the user can have 3x 4x 5x? https://en.wikipedia.org/wiki/APT_(software) https://salsa.debian.org/apt-team/apt.git to keep it simple imho it would be better to use only one “one to rule em all” (maybe python pip as exception) https://www.reddit.com/r/Ubuntu/comments/a364ii/proscons_of_snap_vs_apt/ […]

how to example bash python – test driving Hetzner’s s3 bucket
04.10.2024

how to get started: have a hetzner account login to https://console.hetzner.cloud/ create a new project click on project in the left menu there is a new entry: Object Storage tested and works: upload download delete untested: https://docs.hetzner.com/de/storage/object-storage/howto-protect-objects/protect-versioning/ pricing: https://docs.hetzner.com/de/storage/object-storage/overview/#preise max. […]

GNU Linux ssh magic tricks – access devices without opening firewall port – reverse ssh proxy tunnel – open source admin’s vpn and teamviewer replacement (no open ports needed) – how to use ssh into a network behind router-firewall and forward port of any device to localhost
01.04.2024

scroll down to: “how to access user-dev-admin’s home network boxes from anywhere via reverse-ssh-tunnel! :D” ssh tunnel remote deviceD’s port access a device’s port that is only available via a specific machine 😀 or in other words: ssh-tunnel port of […]

GNU Linux howto ssh sshd config hardening security guide
10.03.2024

update: 2024-06: ed25519 is currently “the way to go” ssh can be regarded as “critical core infrastructure” time spend on it’s security is time well spend time + money well invested: https://www.openssh.com https://github.com/openssh current manpage: ssh.man.txt WARNING: this howto guide […]

03.04.2022

this might sound trivial, but there are multiple approaches: # for (theoretically every) Debian, but not every Debian based system: cat /etc/debian_version 11.3 # for Debian 10 and prior hostnamectl|grep Op Operating System: Debian GNU/Linux 10 (buster) # for Debian […]

SAS connected NVMes aka Kingston’s datacenter capable (24-7) NVMe SSDs (DC 1500m Enterprise-class U.2 PCIe NVMe Gen 3.0 x4 SSD) only work with mainboard that have U.2 interface – U.2 on Desktop is called mini-SAS or SFF-8643 on Servers
10.03.2022

IDE, SCSI, SATA, SAS now U.2 M.2… these drives are called: “U.2 PCIe NVMe” no kidding, search for em on ebay. that reminds of… “the usb cable chaos” has arrived with “Slim SAS” for another round of mass cable connector confusion […]